Influence of Quantity and Quality of Bonding Phases on Strength of Iron Ore Sinters
Sinter is the main raw material of blast furnaces, and its strength influences its running condition. Nevertheless, there is no comprehensive definition of the influencing mechanisms of the strength of the sinter. In this paper, the influences of the quantity and quality of the bonding phase on the...
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2025-01-01
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| author | Zhigang Que Laixin Wang Yinxuan Fu Fan Gu Jinming Shi |
| author_facet | Zhigang Que Laixin Wang Yinxuan Fu Fan Gu Jinming Shi |
| author_sort | Zhigang Que |
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| description | Sinter is the main raw material of blast furnaces, and its strength influences its running condition. Nevertheless, there is no comprehensive definition of the influencing mechanisms of the strength of the sinter. In this paper, the influences of the quantity and quality of the bonding phase on the strength of the sinter were investigated by changing the sintering parameters, such as the maximum sintering temperature, the binary basicity of adhering fines, holding time at high temperature, and types of core ores. As the maximum temperature increased from 1240 °C to 1320 °C and the binary basicity of the adhering fines increased from 5.0 to 9.0, and the strength of the sinter increased first and then decreased. The strength of the sinter was improved by increasing the holding time at high temperatures and reducing the melt absorbability of core ores. The strength of the sinter was comprehensively influenced by the strength of the bonding phase, the fluidity of the original melt, and the melt absorbability of core ores. There is a multivariate linear relationship between them. Moreover, the strength of the bonding phase had the greatest effect on the strength of the sinter, followed by the fluidity of the original melt, and the melt absorbability of core ores was the smallest. |
| format | Article |
| id | doaj-art-33425c6a6d0a419eb84e7aca0b358aa7 |
| institution | Kabale University |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj-art-33425c6a6d0a419eb84e7aca0b358aa72025-01-24T13:41:30ZengMDPI AGMetals2075-47012025-01-011514710.3390/met15010047Influence of Quantity and Quality of Bonding Phases on Strength of Iron Ore SintersZhigang Que0Laixin Wang1Yinxuan Fu2Fan Gu3Jinming Shi4Key Laboratory of Greenhouse Gas Accounting and Carbon Reduction of Jiangxi Province, Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, ChinaIntelligent Development Department, MCC Huatian Engineering & Technology Corporation, Nanjing 210019, ChinaKey Laboratory of Greenhouse Gas Accounting and Carbon Reduction of Jiangxi Province, Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, ChinaKey Laboratory of Greenhouse Gas Accounting and Carbon Reduction of Jiangxi Province, Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, ChinaKey Laboratory of Greenhouse Gas Accounting and Carbon Reduction of Jiangxi Province, Institute of Energy Research, Jiangxi Academy of Sciences, Nanchang 330096, ChinaSinter is the main raw material of blast furnaces, and its strength influences its running condition. Nevertheless, there is no comprehensive definition of the influencing mechanisms of the strength of the sinter. In this paper, the influences of the quantity and quality of the bonding phase on the strength of the sinter were investigated by changing the sintering parameters, such as the maximum sintering temperature, the binary basicity of adhering fines, holding time at high temperature, and types of core ores. As the maximum temperature increased from 1240 °C to 1320 °C and the binary basicity of the adhering fines increased from 5.0 to 9.0, and the strength of the sinter increased first and then decreased. The strength of the sinter was improved by increasing the holding time at high temperatures and reducing the melt absorbability of core ores. The strength of the sinter was comprehensively influenced by the strength of the bonding phase, the fluidity of the original melt, and the melt absorbability of core ores. There is a multivariate linear relationship between them. Moreover, the strength of the bonding phase had the greatest effect on the strength of the sinter, followed by the fluidity of the original melt, and the melt absorbability of core ores was the smallest.https://www.mdpi.com/2075-4701/15/1/47iron ore sinterstrength of the sinterfluidity of original meltmelt absorbability of core oresstrength of the bonding phasesintering parameter |
| spellingShingle | Zhigang Que Laixin Wang Yinxuan Fu Fan Gu Jinming Shi Influence of Quantity and Quality of Bonding Phases on Strength of Iron Ore Sinters Metals iron ore sinter strength of the sinter fluidity of original melt melt absorbability of core ores strength of the bonding phase sintering parameter |
| title | Influence of Quantity and Quality of Bonding Phases on Strength of Iron Ore Sinters |
| title_full | Influence of Quantity and Quality of Bonding Phases on Strength of Iron Ore Sinters |
| title_fullStr | Influence of Quantity and Quality of Bonding Phases on Strength of Iron Ore Sinters |
| title_full_unstemmed | Influence of Quantity and Quality of Bonding Phases on Strength of Iron Ore Sinters |
| title_short | Influence of Quantity and Quality of Bonding Phases on Strength of Iron Ore Sinters |
| title_sort | influence of quantity and quality of bonding phases on strength of iron ore sinters |
| topic | iron ore sinter strength of the sinter fluidity of original melt melt absorbability of core ores strength of the bonding phase sintering parameter |
| url | https://www.mdpi.com/2075-4701/15/1/47 |
| work_keys_str_mv | AT zhigangque influenceofquantityandqualityofbondingphasesonstrengthofironoresinters AT laixinwang influenceofquantityandqualityofbondingphasesonstrengthofironoresinters AT yinxuanfu influenceofquantityandqualityofbondingphasesonstrengthofironoresinters AT fangu influenceofquantityandqualityofbondingphasesonstrengthofironoresinters AT jinmingshi influenceofquantityandqualityofbondingphasesonstrengthofironoresinters |